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Finding the Fourth Proportional to 128,800.98, 193,179.59 and 34,032.20

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Solution

The fourth proportional to 128,800.98, 193,179.59 and 34,032.20 is: 51,042.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,800.98 : 193,179.59 = 34,032.20 : x
  2. Step 2: Convert to fraction form
    128,800.98/193,179.59 = 34,032.20/x
  3. Step 3: Cross multiply
    128,800.98x = 193,179.59 × 34,032.20
  4. Step 4: Simplify right side
    128,800.98x = 6,574,326,442.80
  5. Step 5: Solve for x
    x = 6,574,326,442.80/128,800.98
  6. Step 6: Final answer
    x = 51,042.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.